This gave me an idea, that cgminer was locking up this icon, and indeed, cgminer is locking up this icon, after I eject my android.
If I restart my pc, then plug in my android via usb, then right click this icon, click eject, then click the icon again, it goes away. The second after I start cgminer, plug in my android, right click the icon, eject, click the icon, the icon does not go away, I have to restart the pc.
The icon.
https://www.dropbox.com/s/0i43y56dtlrg2ny/Safely%20Remove.jpg
Any suggestions?
I've added
"hotplug" : "0",
(and wont mine on any BAS,BFL,MMQ USB devices)
So you can at least work out if your problem is caused by libusb or some other program.
Though I will point out that on my linux desktop mining with a BFL and a BAJ, I regularly plug in and pull out 2xSamsung (GS1 and GS3) Androids and an iPhone3 and have no problems at all - but that is linux not windows ...